5149021 has 2 divisors, whose sum is σ = 5149022. Its totient is φ = 5149020.

The previous prime is 5149013. The next prime is 5149049. The reversal of 5149021 is 1209415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2604996 + 2544025 = 1614^2 + 1595^2 .

It is a cyclic number.

It is not a de Polignac number, because 5149021 - 2³ = 5149013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5148983 and 5149001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5149061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2574510 + 2574511.

It is an arithmetic number, because the mean of its divisors is an integer number (2574511).

Almost surely, 2^5149021 is an apocalyptic number.

It is an amenable number.

5149021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5149021 is an equidigital number, since it uses as much as digits as its factorization.

5149021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 5149021 is about 2269.1454338583. The cubic root of 5149021 is about 172.6798069105.

The spelling of 5149021 in words is "five million, one hundred forty-nine thousand, twenty-one".